Although you can catch her starring role as Claire in the “Marvel One-Shot” short film “Item 47″ when Marvel’s The Avengers hits DVD and Blu-ray next Tuesday, September 25, actress Lizzy Caplan tells SuperHeroHype that fans shouldn’t get too excited about her reprising the role in the upcoming “S.H.I.E.L.D.” television series.

“I can’t really,” she explained today at the press junket for her upcoming comedy 3, 2, 1… Frankie Goes Boom, “…I have my own show so I will not be a regular on the Marvel ‘S.H.I.E.L.D.’ show. But I’m glad people are so excited about that. I think it’s a good idea… Maybe I could do some little thing.”

Caplan’s new series, “Masters of Sex,” recently went to series at Showtime and follows her and Michael Sheen as William Masters and Virginia Johnson who, in real life, were instrumental in researching human sexuality beginning in the late 1950’s.

Although very little is known about what “S.H.I.E.L.D.” will involve, Joss Whedon is producing and has plans to both write and direct the pilot episode. Earlier this month, another one of the short film’s stars, Maximiliano Hernández, hinted that it’s possible we’ll see his Agent Jasper Sitwell as a member of the cast.

3, 2, 1… Frankie Goes Boom, which also stars Charlie Hunnam, Chris O’Dowd and Ron Perlman, is now available On Demand and will hit theaters on October 12.